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			280 lines
		
	
	
		
			8.2 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			280 lines
		
	
	
		
			8.2 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2022 Edouard Griffiths, F4EXB <f4exb06@gmail.com>               //
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//                                                                               //
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// This program is free software; you can redistribute it and/or modify          //
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// it under the terms of the GNU General Public License as published by          //
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// the Free Software Foundation as version 3 of the License, or                  //
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// (at your option) any later version.                                           //
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//                                                                               //
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// This program is distributed in the hope that it will be useful,               //
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// but WITHOUT ANY WARRANTY; without even the implied warranty of                //
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the                  //
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// GNU General Public License V3 for more details.                               //
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//                                                                               //
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// You should have received a copy of the GNU General Public License             //
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// along with this program. If not, see <http://www.gnu.org/licenses/>.          //
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///////////////////////////////////////////////////////////////////////////////////
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#include <QtCore>
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#include <QtGui>
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#include <QDebug>
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#include "doa2compass.h"
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DOA2Compass::DOA2Compass(QWidget *parent)
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    : QWidget(parent)
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{
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    connect(this, SIGNAL(canvasReplot(void)), this, SLOT(canvasReplot_slot(void)));
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    m_sizeMin = 200;
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    m_sizeMax = 600;
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    m_offset = 2;
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    m_size = m_sizeMin - 2*m_offset;
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    m_drawLegend = false;
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    setMinimumSize(m_sizeMin, m_sizeMin);
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    setMaximumSize(m_sizeMax, m_sizeMax);
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    resize(m_sizeMin, m_sizeMin);
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    setFocusPolicy(Qt::NoFocus);
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    m_azPos  = 0.0;
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    m_azNeg  = 0.0;
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    m_azAnt  = 0.0;
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    m_blindAngle = 0.0;
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    m_blindColor = QColor(32, 32, 32);
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}
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DOA2Compass::~DOA2Compass()
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{
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}
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void DOA2Compass::canvasReplot_slot(void)
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{
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    update();
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}
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void DOA2Compass::resizeEvent(QResizeEvent *event)
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{
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    m_size = qMin(width(),height()) - 2*m_offset;
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    QWidget::resizeEvent(event);
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}
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void DOA2Compass::paintEvent(QPaintEvent *)
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{
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    QPainter painter(this);
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    QBrush bgGround(palette().button().color());
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    QPen   whitePen(Qt::white);
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    QPen   blackPen(Qt::black);
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    QPen   redPen(Qt::red);
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    QPen   bluePen(Qt::blue);
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    QPen   greenPen(Qt::green);
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    QPen   borderPen(palette().button().color().lighter(200));
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    whitePen.setWidth(1);
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    blackPen.setWidth(2);
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    redPen.setWidth(2);
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    bluePen.setWidth(2);
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    greenPen.setWidth(2);
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    painter.setRenderHint(QPainter::Antialiasing);
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    painter.translate(width() / 2, height() / 2);
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    // draw background
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    {
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        painter.setPen(whitePen);
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        painter.setBrush(bgGround);
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        painter.drawEllipse(-m_size/2, -m_size/2, m_size, m_size);
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    }
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    // draw blind angle
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    if (m_blindAngle != 0)
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    {
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        painter.setBrush(m_blindColor);
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        painter.setPen(m_blindAngleBorder ? borderPen : Qt::NoPen);
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        painter.rotate(m_azAnt - 90);
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        painter.drawPie(-m_size/2, -m_size/2, m_size, m_size, -m_blindAngle*16, m_blindAngle*32);
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        painter.rotate(180);
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        painter.drawPie(-m_size/2, -m_size/2, m_size, m_size, -m_blindAngle*16, m_blindAngle*32);
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        painter.rotate(-m_azAnt - 90);
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        painter.setBrush(Qt::NoBrush);
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        painter.setPen(whitePen);
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        painter.drawEllipse(-m_size/2, -m_size/2, m_size, m_size);
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    }
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    // draw compass lines
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    {
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        int     nyawLines = 36;
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        float   rotAng = 360.0 / nyawLines;
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        int     yawLineLeng = m_size/25;
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        double  fx1, fy1, fx2, fy2;
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        int     fontSize = 8;
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        QString s;
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        blackPen.setWidth(1);
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        painter.setPen(whitePen);
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        painter.setFont(font());
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        for(int i=0; i<nyawLines; i++) {
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            if( i == 0 ) {
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                s = "N";
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            } else if ( i == 9 ) {
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                s = "E";
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            } else if ( i == 18 ) {
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                s = "S";
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            } else if ( i == 27 ) {
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                s = "W";
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            } else {
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                s = QString("%1").arg(i*rotAng);
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            }
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            fx1 = 0;
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            fy1 = -m_size/2 + m_offset;
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            fx2 = 0;
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            if (i % 3 == 0)
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            {
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                fy2 = fy1 + yawLineLeng;
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                painter.drawLine(QPointF(fx1, fy1), QPointF(fx2, fy2));
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                fy2 = fy1 + yawLineLeng+4;
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                painter.drawText(QRectF(-50, fy2, 100, fontSize+2), Qt::AlignCenter, s);
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            }
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            else
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            {
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                fy2 = fy1 + yawLineLeng/2;
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                painter.drawLine(QPointF(fx1, fy1), QPointF(fx2, fy2));
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            }
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            painter.rotate(rotAng);
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        }
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    }
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    // draw antennas arrow
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    {
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        int     arrowWidth = m_size/20;
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        double  fx1, fy1, fx2, fy2, fx3, fy3;
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        fx1 = 0;
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        fy1 = -m_size/2 + m_offset + m_size/25 + 15;
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        fx2 = -arrowWidth/2;
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        fy2 = 0;
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        fx3 = arrowWidth/2;
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        fy3 = 0;
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        painter.rotate(m_azAnt);
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        painter.setPen(Qt::NoPen);
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        painter.setBrush(QBrush(QColor(192, 192, 192)));
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        QPointF pointsN[3] = {
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            QPointF(fx1, fy1),
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            QPointF(fx2, fy2),
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            QPointF(fx3, fy3)
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        };
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        painter.drawPolygon(pointsN, 3);
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        fx1 = 0;
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        fy1 = m_size/2 - m_offset - m_size/25 - 15;
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        fx2 = -arrowWidth/2;
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        fy2 = 0;
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        fx3 = arrowWidth/2;
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        fy3 = 0;
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        painter.setBrush(QBrush(palette().button().color().lighter(150)));
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        QPointF pointsS[3] = {
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            QPointF(fx1, fy1),
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            QPointF(fx2, fy2),
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            QPointF(fx3, fy3)
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        };
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        painter.drawPolygon(pointsS, 3);
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        painter.rotate(-m_azAnt);
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    }
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    // draw azPos marker
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    {
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        int     azMarkerSize = m_size/15;
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        double  fx1, fy1, fx2, fy2, fx3, fy3, fyl;
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        fx1 = 0;
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        fy1 = -m_size/2 + m_offset;
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        fx2 = fx1 - azMarkerSize/2;
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        fy2 = fy1 + azMarkerSize;
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        fx3 = fx1 + azMarkerSize/2;
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        fy3 = fy1 + azMarkerSize;
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        fyl = -m_size/2; //  -m_size/2 + m_offset + m_size/25 + 15;
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        painter.rotate(m_azPos);
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        painter.setPen(Qt::NoPen);
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        painter.setBrush(QBrush(QColor(0xFF, 0x60, 0x60, 0xA0)));
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        QPointF points[3] = {
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            QPointF(fx1, fy1),
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            QPointF(fx2, fy2),
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            QPointF(fx3, fy3)
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        };
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        painter.drawPolygon(points, 3);
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        painter.setPen(QColor(0xFF, 0x60, 0x60, 0xE0));
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        painter.drawLine(0, 0, 0, fyl);
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        painter.rotate(-m_azPos);
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    }
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    // draw azNeg marker
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    {
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        int     yawMarkerSize = m_size/15;
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        double  fx1, fy1, fx2, fy2, fx3, fy3, fyl;
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        fx1 = 0;
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        fy1 = -m_size/2 + m_offset;
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        fx2 = fx1 - yawMarkerSize/2;
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        fy2 = fy1 + yawMarkerSize;
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        fx3 = fx1 + yawMarkerSize/2;
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        fy3 = fy1 + yawMarkerSize;
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        fyl = -m_size/2;
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        painter.rotate(m_azNeg);
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        painter.setPen(Qt::NoPen);
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        painter.setBrush(QBrush(QColor(0x80, 0xFF, 0x80, 0xA0)));
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        QPointF points[3] = {
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            QPointF(fx1, fy1),
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            QPointF(fx2, fy2),
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            QPointF(fx3, fy3)
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        };
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        painter.drawPolygon(points, 3);
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        painter.setPen(QColor(0x80, 0xFF, 0x80, 0xE0));
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        painter.drawLine(0, 0, 0, fyl);
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        painter.rotate(-m_azNeg);
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    }
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    // draw legend
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    if (m_drawLegend)
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    {
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        int altFontSize = 8;
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        int fx, fy, w, h;
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        w  = 10*altFontSize;
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        h  = 3*(altFontSize + 8);
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        fx = -w/2;
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        fy = -h/2;
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        painter.setPen(whitePen);
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        painter.setBrush(QBrush(Qt::black));
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        QFont f = font();
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        f.setPointSize(altFontSize);
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        painter.setFont(f);
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        painter.drawRoundedRect(fx, fy, w, h, 6, 6);
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        painter.drawText(QRectF(fx, fy+2, w, h/3), Qt::AlignCenter, QString("POS: %1%2").arg((int) m_azPos, 3, 10, QLatin1Char('0')).arg(QChar(0260)));
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        painter.drawText(QRectF(fx, fy+h/3, w, h/3), Qt::AlignCenter, QString("ANT: %1%2").arg((int) m_azAnt, 3, 10, QLatin1Char('0')).arg(QChar(0260)));
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        painter.drawText(QRectF(fx, fy+2*(h/3), w, h/3), Qt::AlignCenter, QString("NEG: %1%2").arg((int) m_azNeg, 3, 10, QLatin1Char('0')).arg(QChar(0260)));
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    }
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}
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